Cabinet/016 Cabinet Ventilation for Compressors.pdf

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Index: Cabinet

Subject: (16) Ventilation Requirements for Compressors

Date: February 29, 2012

 

Whenever compressors are mounted in an enclosed section, some form of ventilation should be provided. For units with a standard service vestibule containing compressors, control panel, VFD’s, etc., a vestibule exhaust fan shall be provided. For special sections containing compressors only, or compressors and refrigerant accessories, natural ventilation shall be provided through either louvers or hoods. Louvers or hoods should be provided in both high and low locations to allow the warm to rise and escape at or near the top of the compartment, and allow fresh air to enter at or near the bottom of the compartment. The small hoods that are used for exterior control panels can be used, or similar. Fans are not required. Please note that the compressors do not require any ventilation for cooling, ventilation is provided to avoid excessive heat build up in the compressor compartment.